1451025553 has 4 divisors (see below), whose sum is σ = 1455409648. Its totient is φ = 1446641460.

The previous prime is 1451025523. The next prime is 1451025593. The reversal of 1451025553 is 3555201541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3555201541 = 379 ⋅9380479.

It is a cyclic number.

It is not a de Polignac number, because 1451025553 - 2¹⁷ = 1450894481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1451025503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2191551 + ... + 2192212.

It is an arithmetic number, because the mean of its divisors is an integer number (363852412).

Almost surely, 2^1451025553 is an apocalyptic number.

It is an amenable number.

1451025553 is a deficient number, since it is larger than the sum of its proper divisors (4384095).

1451025553 is an equidigital number, since it uses as much as digits as its factorization.

1451025553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4384094.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 1451025553 is about 38092.3293196937. The cubic root of 1451025553 is about 1132.1179775340.

The spelling of 1451025553 in words is "one billion, four hundred fifty-one million, twenty-five thousand, five hundred fifty-three".